A complex reciprocal translocation is linked to reduced gamete viability in a loose-bunch grapevine somatic variant

Key Points

• Reduced gamete viability affects reproductive success in somatic variants of grapevines.
• The observed reduction was attributed to a complex reciprocal translocation mechanism involved in inheritance.
• Analysis of gametes showed decreased viability due to genetic rearrangements linked to somatic variants.
• Findings highlight the importance of genetic stability for maintaining the reproductive fitness of grapevine varieties.